Same man appears to hold a child upside down on an apartment block roof edge for a social media picture called: 'Look at this world from a different angle.'
Investigation under way as mummified baby remains, bones and medical records found in disused facility.
Allegations from US cybersecurity firm contain no proof, and only slender detail.
Probe under way into tragedy of two women and man gunned down by colleague said to have had problems at work.
Killer whose partner was four months pregnant is jailed for 15 years after he set fire to her body in Krasnoyarsk.
Up to 30 shot dead after winning traditional spring reindeer races in remote Tiksi.
He forced them to take part in orgies, occultism, and drug-trafficking, a court in Novosibirsk heard.
Customs seized 5.8 kilograms of extinct woolly mammoth remains from the Russian citizen.
EU delegation targeted by activists, who say meeting is glossing over the truth and turning Russia into aggressors.